Window pivot and lock



Feb. 12, 1952 w. DIXON WINDOW PIVOT AND LOCK Filed Oct. 4. 1947INVENTOR. Kai LL64 A 0/1 01V Patented Feb. 12, 1952 UNITED STATES PATENTOFFICE] i p .2,5s5,375 l I wmnow- PIVOT AND LOCK William A. Dixon,Bronx, N. x. v Application October 4, 1941, Serial No. 777,969

This invention relates to a window pivot and lock or reversible windowappliance.

It is an object of the present invention to provide a window pivot andlock wherein there is provided in each sash of the window constructionand at each side thereof a lock device including a channel member with agroove therein for receiving the edge of a fiat plate adapted to beextended in and out of a groove on the side edge of the sash by a turnkey device, the groove being provided in a member vertically adjustablein the window frame and connected to a sash weight.

Other objects of the present invention are to provide a pivot and lockdevice for windows which is of simple construction, inexpensive tomanufacture, provides a neat appearance, easy to install within thewindow frame and efficient in operation.

For other objects and for a better understanding of the invention,reference may be had to the following detailed description taken inconnection with the accompanying drawing, in which Fig. 1 is a frontelevational view of window sash mounted in a window frame and the sashincluding the pivot and lock device of the present invention.

Fig. 2 is an enlarged fragmentary and sectional view taken through theside of the window frame and of the sash with portions broken away andshown in section, with the channel in place and the window sashpivotally connected through its pivot pin therewith and the sash weightextending through an opening in the window frame.

Fig. 3 is an enlarged fragmentary view of the side of a window releasedfrom the channel and pivoted outwardly.

Fig. 4 is a transverse sectional view taken on line 44 of Fig. 2.

Fig. 5 is a fragmentary and perspective view of the lock device carriedon the side of the window sash and showing its locking plate within thegroove on the sash, from which groove it is extended for engagement witha groove in the channel.

Referring now to the figures, represents a window opening having theusual guide pieces I I, I2 and I3, Fig. 4, in which the window elementsI and I5 are raised and lowered.

According to the present invention, there is disposed between the guidesa metal channel It to which the window elements are connected by a pivotpin ll. Each window element has a {tame including a side piece l8. Inthis side 1 Claim. (01. 20-49) piece there is a rece'ss [9 adapted toreceive a fastening plate 2| for securing the pivot pin I! to the sideof the window element. Screws 22 are extended into the sash to securethe plate 2| thereto. The channel l6 has a hole therein through whichthe pivot pin [1 is extended. About the pivot pin and within the channelis a washer 23 and a T-plate 24 connected to the pivot pin and madesecure therein by a nut 25.

From the T-plate 24 there is a chain 21 which may be connected to a sashweight 28 operating in an opening 29 in the side of the window. Thechannels 16 can slide between the guides in the same manner as with thestandard window sash the edges thereof slide between the window guides.

The channel l6 has a longitudinal groove 3| extending along its externalface into which a locking plate 32 may be extended whereby to secure thewindow element against pivotal movement on the pin H.

A groove 33 is provided along the sides of the window element to receivethe looking plate 32 and the same will be extended from this groove intothe groove 3| of the channel. The plate 32 has a projection 34 which isattached to a lock cylinder 35. This lock cylinder can receive a key 36and when a key is turned, the plate 32 will be moved in or out of groove33 to lock or release the window element. The lock cylinder 35 has aneccentric crank pin 31 which extends into a hole in the projection 34 ofthe plate 32.

The lock cylinder 35 has a flange 38 which extends over the window sashface and is secured thereto by fastening screws 39.

While various changes may be made in the detail construction, it shallbe understood that such changes shall be within the spirit and scope ofthe present invention as defined by the appended claim.

Having thus set forth and disclosed the nature of my invention, what isclaimed is;

A window construction comprising a window frame having verticallyextending guide elements, channels slidable in'the frame and between theguide elements, said channels having respectively longitudinallyextending grooves offset from the center and running continuously fromone end to the other, window elements adjustable in the window frame, apivot pin extending from each side edge of the respective windowelements and into the channel, said win dow elements havinglongitudinally extending grooves in the respective side edges thereofand ofiset from the center of the window element edges, said grooves inthe window element being offset from the pivot pin and extendingcontinuously and substantially from the lower edge of the window elementto the upper edge thereof, a long locking plate in each of the groovesof the window elements adapted to be extended therefrom and into thegroove of a channel whereby to lock the window element to the channelegainstvangular displacement a lock cylinder adapted to be operated'by akey connected to each locking plate to move the same in and out of thegroove in the window element out of and into engagement with thecorresponding grooves of the channels and pulleyweight means extendinginto each channel and connected to the pivot pin, said pulley weightmeans having a plate and spacing means onthe pivot pin for holding theplate spaced from the inner face of the channel and {mm the groove.

A. DIXON. 50

REFERENCES orrnn The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 606,296 Pedersen June 28, 1898720,164 Loree Feb. 10, 1903 305387 'Smith Nov. 21, 1905 835,251 "ParkerNov. 6, 1906 849,585 Wagner et a1 Apr. 9, 1907 "2,078,506 Nuebel Apr.27, 1937 2304909 Pascuzzi et a1. June 18, 1940 FOREIGN PATENTS NumberCountry Date 462,680 Great Britain 1936

